| Former Countries by Territory Map | 0 | - | 4.96 | 101,378 |
| Empires by Maps | 0 | - | 4.98 | 118,256 |
| Elements by Picture | 0 | - | 4.28 | 69,503 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,144 |
| Animals by Skeleton Image | 0 | - | 4.80 | 45,936 |
| Islands by Shape #2 | 0 | - | 4.88 | 58,967 |
| Planets By Picture Quiz | 0 | - | 4.49 | 56,119 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 102,661 |
| Play-Doh People from History | 0 | - | 4.99 | 93,753 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 60,975 |
| All Country Flags of the World | 0 | - | 5.00 | 3,596,818 |
| Metals of Antiquity | 0 | - | 4.94 | 92,840 |
| Years in History by Picture | 0 | - | 4.44 | 35,064 |
| Famous Foreheads #1 | 0 | - | 4.47 | 74,155 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,525,209 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,086,895 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,295 |
| Name that Object #1 | 0 | - | 3.56 | 96,283 |
| Make a Stained Glass Window | 0 | - | 5.00 | 67,744 |
| Flags with Crescents | 0 | - | 4.98 | 167,375 |
| Country Flag Trivia | 0 | - | 4.81 | 55,824 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,288 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,379 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 85,794 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,380 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,304 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 51,960 |
| National Football Team Logos | 0 | - | 4.84 | 178,492 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,524 |
| Old Movies by Picture | 0 | - | 4.51 | 24,773 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 46,638 |
| Random Logos Quiz | 0 | - | 4.32 | 206,909 |
| Pictures by Letter - A | 0 | - | 4.17 | 33,102 |
| Pictures by Letter - J | 0 | - | 4.31 | 39,695 |
| Pictures by Letter - B | 0 | - | 4.31 | 43,591 |
| Pictures by Letter - D | 0 | - | 4.16 | 37,283 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,503 |
| Fruits by Picture | 0 | - | 4.20 | 804,415 |
| Geography by Picture - B | 0 | - | 4.42 | 55,391 |
| Geography by Picture - H | 0 | - | 4.49 | 58,026 |
| Geography by Picture - N | 0 | - | 4.45 | 42,038 |
| Geography by Picture - R | 0 | - | 4.55 | 40,869 |
| Geography by Picture - T | 0 | - | 4.54 | 57,656 |
| Flags to Languages | 0 | - | 4.95 | 172,391 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 113,053 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.96 | 50,143 |
| Body Parts in History and Culture | 0 | - | 4.42 | 35,012 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,207 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,573 |
| Countries with Glaciers | 0 | - | 4.97 | 104,612 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,195 |
| Name that Object #2 | 0 | - | 3.64 | 15,313 |
| Name that Object #3 | 0 | - | 3.93 | 14,295 |
| Pick a Picture - Animal Relations | 0 | - | 4.94 | 54,786 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 335,314 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,383 |
| Car Logos Quiz #1 | 0 | - | 4.44 | 531,407 |
| Pictures by Letter - E | 0 | - | 3.49 | 34,260 |
| Pictures by Letter - G | 0 | - | 4.14 | 27,892 |
| Pictures by Letter - L | 0 | - | 4.14 | 30,307 |
| Pictures by Letter - F | 0 | - | 4.17 | 28,783 |
| Pictures by Letter - Z | 0 | - | 4.05 | 23,282 |
| Pictures by Letter - Y | 0 | - | 4.22 | 26,094 |
| Pictures by Letter - R | 0 | - | 4.09 | 24,565 |
| Pictures by Letter - K | 0 | - | 4.18 | 24,906 |
| Pictures by Letter - I | 0 | - | 4.16 | 30,162 |
| Pictures by Letter - N | 0 | - | 4.11 | 24,307 |
| Pictures by Letter - P | 0 | - | 4.05 | 25,846 |
| Pictures by Letter - U | 0 | - | 4.10 | 20,594 |
| Pictures by Letter - T | 0 | - | 4.34 | 27,458 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,573 |
| Name that Bug | 0 | - | 4.12 | 45,438 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,170 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 57,592 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,380 |
| Islands by Picture | 0 | - | 4.29 | 105,801 |
| Classic Movies by Movie Posters | 0 | - | 4.44 | 24,014 |
| Animals by Close-up Image | 0 | - | 4.42 | 216,511 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,197 |
| Extinct Animals by Picture | 0 | - | 4.49 | 34,888 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,058 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 47,742 |
| International Footballers by Picture | 0 | - | 4.50 | 54,629 |
| Name that Historical Figure #2 | 0 | - | 4.43 | 282,415 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 106,527 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.50 | 50,255 |
| Geography by Picture - A | 0 | - | 4.39 | 60,030 |
| Geography by Picture - D | 0 | - | 4.15 | 45,475 |
| Geography by Picture - F | 0 | - | 4.31 | 50,815 |
| Geography by Picture - G | 0 | - | 4.38 | 47,776 |
| Geography by Picture - J | 0 | - | 4.16 | 38,328 |
| Geography by Picture - K | 0 | - | 4.28 | 33,005 |
| Geography by Picture - C | 0 | - | 4.31 | 56,894 |
| Geography by Picture - L | 0 | - | 4.37 | 58,735 |
| Geography by Picture - M | 0 | - | 4.14 | 40,338 |
| Geography by Picture - P | 0 | - | 4.24 | 42,291 |
| Geography by Picture - S | 0 | - | 4.38 | 46,900 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 278,184 |
| Flag Maths | 0 | - | 4.78 | 57,667 |
| Satellite Images Quiz #1 | 0 | - | 4.46 | 128,975 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 108,960 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,624 |
| Satellite Images Quiz #5 | 0 | - | 4.48 | 49,627 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,785 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,304 |
| Soccer Team Logos | 0 | - | 4.26 | 370,415 |
| Ultimate Car Logos Quiz | 0 | - | 4.79 | 175,845 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 258,996 |
| Video Game Logos Quiz | 0 | - | 4.40 | 182,510 |
| Movie Logos | 0 | - | 4.33 | 235,606 |
| Brand Logos That Start With M | 0 | - | 4.45 | 61,679 |
| Brand Logos That Start With B | 0 | - | 4.41 | 59,119 |
| Brand Logos That Start with A | 0 | - | 4.51 | 69,164 |
| History by Picture - A | 0 | - | 4.25 | 45,435 |
| History by Picture - B | 0 | - | 4.40 | 48,543 |
| History by Picture - C | 0 | - | 4.36 | 54,047 |
| History by Picture - F | 0 | - | 4.35 | 37,558 |
| History by Picture - G | 0 | - | 4.40 | 41,817 |
| History by Picture - D | 0 | - | 4.29 | 43,980 |
| History by Picture - E | 0 | - | 4.27 | 43,600 |
| History by Picture - H | 0 | - | 4.37 | 36,513 |
| History by Picture - K | 0 | - | 4.35 | 33,082 |
| History by Picture - M | 0 | - | 4.17 | 35,889 |
| History by Picture - N | 0 | - | 4.40 | 40,968 |
| History by Picture - O | 0 | - | 4.39 | 36,006 |
| History by Picture - T | 0 | - | 4.20 | 33,066 |
| Name that Nut, Seed, or Bean | 0 | - | 4.63 | 56,801 |
| Animals - Taxonomy to Common Name | 0 | - | 4.79 | 28,082 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,298 |
| Countries with the Most Malaria Deaths | 0 | - | 4.47 | 44,830 |
| Countries that Desalinate the Most Water | 0 | - | 4.77 | 41,343 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 102,394 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,358 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,399,938 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 118,413 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 104,584 |
| Musical Instruments by Picture #1 | 0 | - | 4.53 | 267,814 |
| Foods by Picture | 0 | - | 3.81 | 225,413 |
| Flowers by Picture | 0 | - | 4.46 | 104,992 |
| Junk Foods by Picture | 0 | - | 3.69 | 95,954 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,520 |
| Christmas by Picture | 0 | - | 4.25 | 28,097 |
| Hats by Picture | 0 | - | 4.21 | 17,900 |
| Weapons by Picture | 0 | - | 4.13 | 20,870 |
| Cars by Picture | 0 | - | 3.89 | 41,050 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,222 |
| Authors by Picture | 0 | - | 4.48 | 25,387 |
| Plants by Picture | 0 | - | 4.24 | 14,331 |
| Fruit and Vegetable Emojis | 0 | - | 4.42 | 79,377 |
| WWII Figures by Picture | 0 | - | 4.85 | 50,450 |
| College Sports Logos Quiz #3 | 0 | - | 4.30 | 54,985 |
| Songs by Picture Quiz #1 | 0 | - | 4.68 | 65,301 |
| Songs by Picture Quiz #2 | 0 | - | 4.41 | 58,361 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,042 |
| Animals A-Z by Picture | 0 | - | 4.08 | 65,852 |
| Mammals by Picture #3 | 0 | - | 4.39 | 61,738 |
| Mammals by Picture #4 | 0 | - | 4.03 | 33,878 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,065 |
| Mammals by Picture #2 | 0 | - | 4.28 | 57,823 |
| Oscar Nominated Actors by Picture #1 | 0 | - | 4.42 | 164,381 |
| 1960s Celebrities by Picture #1 | 0 | - | 4.27 | 69,981 |
| 1960s Celebrities by Picture #2 | 0 | - | 4.26 | 51,089 |
| 1950s Celebrities by Picture #1 | 0 | - | 4.24 | 50,903 |
| 1980s Celebrities by Picture #2 | 0 | - | 4.19 | 71,205 |
| 1990s Celebrities by Picture #1 | 0 | - | 4.13 | 78,948 |
| 1990s Celebrities by Picture #2 | 0 | - | 4.16 | 71,887 |
| 2000s Celebrities by Picture #2 | 0 | - | 4.15 | 94,511 |
| Women in History by Picture | 0 | - | 4.25 | 25,749 |
| 1950s Celebrities by Picture #2 | 0 | - | 4.29 | 45,901 |
| Famous Foreheads #2 | 0 | - | 3.17 | 15,643 |
| Name that Historical Figure #3 | 0 | - | 4.36 | 237,524 |
| Name that Historical Figure #4 | 0 | - | 4.29 | 157,929 |
| Name that Historical Figure #6 | 0 | - | 4.27 | 92,349 |
| Musicians by Picture #1 | 0 | - | 4.39 | 106,986 |
| Musicians by Picture #2 | 0 | - | 4.29 | 75,200 |
| Musicians by Picture #4 | 0 | - | 4.07 | 63,968 |
| Musicians by Picture #3 | 0 | - | 4.10 | 58,280 |
| Geography by Picture - E | 0 | - | 3.55 | 47,271 |
| Landforms by Picture | 0 | - | 4.31 | 20,568 |
| Geography by Picture - I | 0 | - | 4.00 | 39,309 |
| Emoji Flags | 0 | - | 4.35 | 43,800 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.64 | 37,438 |
| Languages by Combined Flags | 0 | - | 4.53 | 99,064 |
| Satellite Images Quiz #3 | 0 | - | 4.35 | 73,221 |
| Satellite Images - Island Chains | 0 | - | 4.43 | 65,705 |
| Islands by Satellite Image #1 | 0 | - | 4.70 | 70,048 |
| Peninsulas by Satellite Image | 0 | - | 4.53 | 27,658 |
| Landmarks Picture Quiz #1 | 0 | - | 4.16 | 392,851 |
| Airline Logos | 0 | - | 4.45 | 139,888 |
| Fast Food Logos Quiz | 0 | - | 4.43 | 246,808 |
| Mostly-American Candy Logos | 0 | - | 4.14 | 157,695 |
| Brand Logos That Start With S | 0 | - | 4.37 | 56,608 |
| Brand Logos That Start With D | 0 | - | 4.37 | 60,591 |
| Brand Logos That Start With L | 0 | - | 4.39 | 60,120 |
| Brand Logos That Start With C | 0 | - | 4.17 | 48,968 |
| Pictures by Letter - H | 0 | - | 3.95 | 30,263 |
| Pictures by Letter - C | 0 | - | 3.99 | 29,971 |
| Pictures by Letter - O | 0 | - | 3.98 | 28,506 |
| Pictures by Letter - Q | 0 | - | 3.92 | 20,271 |
| Pictures by Letter - S | 0 | - | 3.82 | 20,764 |
